Examine source code of RedeCanais Auto-player

{
  "manifest_version": 3,
  "name": "RedeCanais Auto-player",
  "version": "1.0.0",
  "description": "Player automático - RC",
  "browser_specific_settings": {
    "gecko": {
      "id": "rc-autoplayer@example.com",
      "strict_min_version": "109.0"
    }
  },
  "permissions": [
    "storage",
    "tabs",
    "activeTab",
    "scripting"
  ],
  "host_permissions": [
    "https://redecanais.sh/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://redecanais.sh/*"
      ],
      "js": [
        "content-script.js"
      ],
      "run_at": "document_end"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "injected.js",
        "content.js",
        "notification.css"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "img/channels4_profile.jpg",
      "32": "img/channels4_profile.jpg",
      "48": "img/channels4_profile.jpg",
      "128": "img/channels4_profile.jpg"
    }
  },
  "icons": {
    "16": "img/channels4_profile.jpg",
    "32": "img/channels4_profile.jpg",
    "48": "img/channels4_profile.jpg",
    "128": "img/channels4_profile.jpg"
  }
}